Opened an account 3 days later, the same document is needed!!!! WHY HARDHOLD???

I opened a youth account for my son on the 31st March 2025, I produced my ID and proof of residence and my son's birth certificate. Yesterday I received an email from FNBHardhold saying FNB needs to maintain and verify client information on an ongoing basis, this account is just 3 days old. Nothing has changed from the day I opened to date so what exactly do you need to verify that the service consultant did not verify upon opening my son's account? I already gave my documents to the branch I opened the account at. So what do you want, are my documents not on your system?